From Sahih Muslim (Hadith 4181):
Nu'man b. Bashir reported:My father donated to me some of his property. My mother Amra bint Rawaha said: I shall not be pleased (with this act) until you make Allah's Messenger (ﷺ) a witness to it. My father went to Allah's Apostle (ﷺ) in order to make him the witness of the donation given to me. Allah's Messenger (ﷺ) said to him: Have you done the same with every son of yours? He said: No. Thereupon he (the Holy Prophet) said: Fear Allah, and observe equity in case of your children. My father returned and got back the gift
Reference: Muslim 4181